11th Class Math MCQS Chapter 7

n different objects can be arranged taken all at time is

(n-1) ways

(n+1)! Ways

n! ways

None of these

If A1,A2,A3, ………………… an are independent events P(A₁. ? A₂. A₃ ? …….. ? A_n) =__________

P(A₁) . P(A₂)………….. P(A_n)

P(A₁ . A₂. A₃ …………..A_n)

None of these

P(A) + P(A₂) +…….. P(A_n)

If a sweet is taken from a bag containing orange flavour sweets the probability of drawing lemon flavoured sweet is

One

Between 1 and 0

Negative one

Zero

ⁿC₈ = ⁿC₁₂ then n is

12

20

8

0

The number of 3-digit numbers formed by using each of the digits 2,3,5,7,9 only once is:

120

60

10

360